package com.koyi0000.mq.rabbit;

import java.util.HashMap;

/**
 * @author koyi0000
 * Description  Date 2020/9/16 17:09
 **/
public class testInterger {


    public static void main(String[] args) {
        Integer a = 10;
        Integer b = 10;
        System.out.println(a == b);

        Integer c = 10000;
        Integer d = 10000;
        System.out.println(c == b);

        System.out.println(String.join("-", "Java", "is", "cool"));
    }
}
